Fixed footnote syntax in README

README.md

@@ -50,4 +50,4 @@ docker run -d --name speed-data -e PORT=8080 -p 8080:8080 --restart unless-stopp
 	- run the container as root (not recommended), or
 	- chown/chmod the host directory appropriately (e.g., `chown 1000:1000 /path/on/host` or `chmod a+rw /path/on/host`) so the container can write files.
 
-[^1] _Note_: AI agent used to Dockerize existing project
+[^1]: _Note_: AI agent used to Dockerize existing project